| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a collating processor by which a non-contact IC card and a card reader-writer hardly affecting disturbance, disturbing electromagnetic induction are realized, and to provide a terminal and a reader-writer device. <P>SOLUTION: The collating processor is provided with: two electromagnetic induction coils 3, 4 having the same number of turns and reverse turning directions, respectively on the non-contact IC card (only the electromagnetic induction coils 3, 4 are shown in the figure); and two magnetic flux generation coils 1, 2 having the same number of turns and reverse turning directions, respectively on the card reader-writer 70. When the non-contact IC card accesses to the card reader/writer within a given distance, the magnetic flux generation coils 1, 2 apply magnetic fluxes 101, 102 having reverse directions, respectively to the non-contact IC card. Double induced electromotive force is obtained by generating the induced electromotive force E31 from the magnetic flux 101 by the electromagnetic induction coil 3 and the induced electromotive force E41 from the magnetic flux 102 by the electromagnetic induction coil 4. Furthermore, when a disturbance magnetic flux is applied to the non-contact IC card, the electromagnetic induction coils 3, 4 generate the cross-canceling induced electromotive forces. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
